The three investigators

After crash-landing in the high Sierras the Three Investigators encounter a village of mysteriously ill Indians and some unusually blood-thirsty hunters.

The Three Investigators are assisted by a Greek youth as they search for clues to a mysterious thief on an island once inhabited by pirates.

In searching for a lost parrot who recites Shakespeare with a stutter, Jupiter Jones' firm of young detectives becomes involved with a missing masterpiece.

Jupiter Jones and his friends help a famous movie director search for an authentic haunted house.